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7/ pays to use
CINE-KODAK FILM
EXPOSURES cannot always be 100°/, accurate, but even where quite serious exposure errors are made, the finished films will not tell the tale if Cine-Kodak Reversal Films (16 mm. and Eight) are used for black-and-white pictures.
In the course of processing by the reversal method (the cost of which, naturally, is included in the price of these films) exposure, mistakes are automatically compensated for by means of a photo-electric control device, which is exclusive to the treatment of Cine-Kodak film. Thus, even with considerable errors of exposure in either direction, you can be sure of pictures rich in tone and detail, and of a constant brightness on the screen.
Look at the accompanying illustrations. They are enlargements from two rolls of Cine-Kodak Pan. Film, both of them over-exposed from /5. 6 to/1.9, and under-exposed from/11 to/16 — the correct stop being /8. The left strip shows you how you are "punished" for your errors by straight processing; the right strip shows how the Reversal Process "lets you off," giving you positives of an almost constant density whatever the vagaries of your exposures.
Another big advantage of Cine-Kodak Reversal Films is their almost complete absence of graininess when projected. In the course of processing, the negative image, consisting of the larger grains, is bleached out, leaving only the minute unexposed grains to form the positive that you see on the screen. This applies with equal force to the duplicates which by the same reversal process can be made from the original positive.
CINE-KODAK FILMS (BLACK and WH.TE)
CINE-KODAK PANCHROMATIC FILM (16 mm.) The standard film for outdoor cinematography.
CINE-KODAK SUPER SENSITIVE PANCHROMATIC FILM (16 mm.). Its high speed makes it indispensable for artificial light work, and for work in weak daylight.
CINE-KODAK 'EIGHT' PANCHROMATIC FILM. A superfine-grain film, for the Cine-Kodak Eight.
CINE-KODAK PANCHROMATIC SOUND RECORDING FILM (16 mm.) Perforated on one side only.
ALL THE ABOVE ARE REVERSAL FILMS, SOLD AT PRICES WHICH INCLUDE PROCESSING AND RETURN POSTAGE.
For full particulars, write to Mr. W. F. Taylor, Dept. 57, KODAK LIMITED ■ KODAK HOUSE ■ KINGSWAY
LONDON
W.C.2
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